/**
 * AITestHub LLP - Design Tokens & Variables
 * Enterprise AI-Powered Quality Engineering Platform
 * Zero External Dependencies
 */

:root {
  /* Color Palette - Core Technical Dark Theme */
  --bg-primary: #070a13;
  --bg-secondary: #0d1222;
  --bg-surface: #12182b;
  --bg-surface-elevated: #172138;
  --bg-surface-hover: #1e2a47;
  --bg-glass: rgba(18, 24, 43, 0.75);
  --bg-glass-heavy: rgba(13, 18, 34, 0.92);
  --bg-highlight: rgba(0, 210, 255, 0.05);

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-accent: rgba(0, 210, 255, 0.35);
  --border-glow: rgba(0, 210, 255, 0.6);

  /* Primary Brand Accents (Precision Cyan to Cobalt) */
  --accent-cyan: #00d2ff;
  --accent-blue: #0066ff;
  --accent-indigo: #4f46e5;
  --gradient-accent: linear-gradient(135deg, #00d2ff 0%, #0066ff 50%, #4f46e5 100%);
  --gradient-accent-soft: linear-gradient(135deg, rgba(0, 210, 255, 0.15) 0%, rgba(0, 102, 255, 0.15) 100%);
  --gradient-card: linear-gradient(180deg, rgba(23, 33, 56, 0.8) 0%, rgba(18, 24, 43, 0.95) 100%);
  --gradient-hero-bg: radial-gradient(circle at 50% -20%, rgba(0, 102, 255, 0.18) 0%, rgba(0, 210, 255, 0.06) 40%, transparent 75%);
  --gradient-pipeline: linear-gradient(90deg, #00d2ff, #0066ff, #10b981);

  /* Engineering Status Indicators */
  --status-pass: #10b981;
  --status-pass-bg: rgba(16, 185, 129, 0.12);
  --status-pass-border: rgba(16, 185, 129, 0.3);

  --status-info: #00d2ff;
  --status-info-bg: rgba(0, 210, 255, 0.12);
  --status-info-border: rgba(0, 210, 255, 0.3);

  --status-warning: #f59e0b;
  --status-warning-bg: rgba(245, 158, 11, 0.12);
  --status-warning-border: rgba(245, 158, 11, 0.3);

  --status-fail: #ef4444;
  --status-fail-bg: rgba(239, 68, 68, 0.12);
  --status-fail-border: rgba(239, 68, 68, 0.3);

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #070a13;
  --text-accent: #38bdf8;

  /* Typography Families */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Font Sizes & Line Heights */
  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.5rem;     /* 24px */
  --text-3xl: 1.875rem;   /* 30px */
  --text-4xl: 2.25rem;    /* 36px */
  --text-5xl: 3rem;       /* 48px */
  --text-6xl: 3.75rem;    /* 60px */

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1240px;
  --container-2xl: 1400px;

  /* Elevations & Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.65);
  --shadow-glow-cyan: 0 0 24px rgba(0, 210, 255, 0.25);
  --shadow-glow-blue: 0 0 32px rgba(0, 102, 255, 0.3);
  --shadow-glow-pass: 0 0 20px rgba(16, 185, 129, 0.25);

  /* Border Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-Index Hierarchy */
  --z-negative: -1;
  --z-normal: 1;
  --z-sticky: 100;
  --z-header: 200;
  --z-modal-backdrop: 300;
  --z-modal: 400;
  --z-assistant: 500;
  --z-toast: 600;
}